Fri, 18 Aug 1995 16:09:41 +0200 paulson minor corrections to indexing; added thms_containing
Fri, 18 Aug 1995 15:54:22 +0200 nipkow changed "o" to (infixl 55)
(0) -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip